CVE-2022-39835Network attack vector

Message impersonation via unverified correction sender

Published Sep 27, 2022 · Updated May 21, 2025

Improper access control in Gajim 1.4.7 and earlier allows remote attackers to alter others' displayed messages using crafted XML stanzas. The message-correction handler accepts a replace element referencing a message without verifying that the correcting stanza's sender originated that message. Participant access to the group chat or single chat is required, and successful exploitation falsifies the displayed conversation history.

CVSS severity5.3
Medium
EPSS probability0.50%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper access control in Gajim 1.4.7 and earlier allows remote attackers to alter others' displayed messages using crafted XML stanzas. The message-correction handler accepts a replace element referencing a message without verifying that the correcting stanza's sender originated that message. Participant access to the group chat or single chat is required, and successful exploitation falsifies the displayed conversation history.

The record

CVE
CVE-2022-39835
Published
Sep 27, 2022
Updated
May 21, 2025
Vendor
Unknown vendor
Product
Unknown product
Classifications
CWE-284, T1565.002
Attack vector
network
Privileges
Unavailable

Timeline

How it unfolded

  1. Sep 27, 2022CVE publishedPublication date reported by the CVE source.
  2. May 21, 2025Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Affected buildAffected product and version details are unavailable.

What conditions does exploitation require?

Attack vectornetwork
Required privilegesUnavailable in this record.

What is affected?

Affected products and versions are unavailable in this record.

Published CVSS scores

5.3CISA ADP VulnrichmentCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
5.3NVDCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

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No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
PrivilegesUnavailable
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-284Improper Access Control
T1565.002Transmitted Data Manipulation

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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